CN218703249U

CN218703249U - Split type locomotive axle box device with bearing insulation and hoisting functions

Info

Publication number: CN218703249U
Application number: CN202223292598.5U
Authority: CN
Inventors: 林景东; 程骋; 张明超; 李传龙; 赵吉蛟; 李嘉飞; 宋华威; 樊慧; 唐克; 张德鹏
Original assignee: CRRC Dalian Co Ltd
Current assignee: CRRC Dalian Co Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-03-24
Anticipated expiration: 2032-12-08

Abstract

The utility model relates to a split locomotive axle box device with bearing insulation and hoisting functions, which comprises a framework, an axle box body arranged below the framework and axle box springs respectively connected between the two sides of the bottom of the framework and the two sides of the axle box body; the device also comprises a framework hanging seat, an insulating vibration damping pad, a shaft box body hanging seat, a supporting plate, a hanging chain, a first insulating sleeve, a second insulating sleeve and a third insulating sleeve. The utility model discloses can also prevent that the electric current from passing to axle box and bearing from the framework when guaranteeing that stable damping is connected between axle box and the framework, prolong the life of bearing, reduce vehicle application maintenance cost, possess the function of lifting by crane at any time simultaneously.

Description

Split type locomotive axle box device with bearing insulation and hoisting functions

Technical Field

The utility model relates to a rail vehicle technical field especially relates to a split type locomotive axle box device that possesses bearing insulation and lift by crane function.

Background

At present, the axle box device for the locomotive does not need steel rail backflow because the diesel locomotive adopts a diesel engine to generate electricity to provide electric energy to drive a motor, so the axle box device for the diesel locomotive does not generally consider the insulation function. However, the electric locomotive receives electric energy from the pantograph via the pantograph and needs to return from the rail, and during operation, a large current flows through the axle box bearing, so that the axle box device of the electric locomotive must be provided with a grounding device in order to avoid electric corrosion of the bearing.

With the development of rail transit, high-power electrical equipment such as an air conditioner on a locomotive is increasing, once electric leakage of the electrical equipment occurs, the electric leakage may be conducted to other equipment of a rail vehicle, so that safety accidents are caused, and therefore the rail vehicle needs to be reliably and safely grounded. The leakage current is generally transmitted to a bogie through a metal shell of the vehicle, then transmitted to a steel rail through wheels, and finally returned to the ground.

In addition, in the existing axle box structure of the internal combustion engine, parts between the frame of the bogie and the axle box do not consider an insulation structure, and current is directly transmitted to the bearing through the axle box, so that the bearing is possibly corroded electrically, the bearing is damaged, and adverse effects such as abnormal vibration, noise, temperature rise and the like are caused.

Present locomotive axle box lifts by crane the scheme and generally adopts hook formula or chain sling formula dual mode, no matter which kind of scheme, need set up solitary lifting sling, when the locomotive normally works, need demolish, otherwise will influence the insulating properties of locomotive. The axle box device of the prior art is difficult to realize the problem of coexistence of an insulation function and a hoisting function, and the axle box device of the electric locomotive and the axle box device of the internal combustion locomotive are difficult to realize universality because the axle box used by the internal combustion locomotive does not have the insulation function, thereby forming two different routes.

Disclosure of Invention

To the above problem, an object of the utility model is to provide a possess the bearing insulation and lift by crane split type locomotive axle box device of function, can guarantee between axle box and the framework when stable damping is connected, can also prevent that the electric current from passing to axle box and bearing from the framework, prolong the life cycle of bearing, reduce vehicle application maintenance cost, possess the function of lifting by crane at any time simultaneously.

The utility model adopts the technical scheme as follows:

the utility model provides a split type locomotive axle box device with bearing insulation and lifting functions, which comprises a framework, an axle box body arranged below the framework and axle box springs respectively connected between two sides of the bottom of the framework and two sides of the axle box body; the device also comprises a framework hanging seat, an insulating vibration damping pad, a shaft box body hanging seat, a supporting plate, a hanging chain, a first insulating sleeve, a second insulating sleeve and a third insulating sleeve; the frame hanging seats are respectively arranged on two sides of the bottom of the frame and are positioned inside the top ends of the axle box springs; the bottom end of the axle box spring is connected with the corresponding position of the axle box body through an insulating damping pad; the shaft box body hanging seat is correspondingly arranged below the insulating vibration damping pad; the supporting plate is arranged at the bottom of the axle box body hanging seat and is fixedly connected with the axle box body through a bolt; the third insulating sleeve is arranged between the axle box body hanging seat and the axle box body and the supporting plate; the suspension chains are arranged in the axle box springs, and the upper ends and the lower ends of the suspension chains are respectively connected with the framework suspension seat and the axle box suspension seat correspondingly; the first insulating sleeve is arranged between the suspension chain and the lower area of the axle box spring; the second insulating sleeve is arranged between the bottom of the hanging chain and the shaft box body.

Preferably, the axle box body is of a split structure, and the bottom of the axle box body is connected with a detachable base through bolts.

Preferably, the middle area of the front end face of the axle box body is provided with an opening.

Preferably, the insulating vibration damping pad comprises an upper steel plate, a lower steel plate and an insulating rubber interlayer arranged between the two steel plates.

Preferably, the first insulating sleeve, the second insulating sleeve and the third insulating sleeve are nylon insulating sleeves.

Preferably, the shaft head inside the shaft box body is provided with a grounding device.

Compared with the prior art, the utility model following beneficial effect has:

1. the axle box can be lifted at any time without dismounting any parts, so that the lifting function can be realized.

2. The installation of the hoisting part does not sacrifice the performance of other parts, thereby improving the reliability of the locomotive;

3. the shaft box body adopts a split structure, so that the driving and replacing process is simplified, and the maintenance cost and the workload are reduced;

4. and meanwhile, the bearing insulation and hoisting functions are realized, and the universality of the axle box device of the diesel locomotive and the electric locomotive is realized.

5. The shaft box body is provided with a hole at the end part, so that a flaw detection probe can directly and conveniently enter, the ultrasonic flaw detection flow is simplified, the workload is less, and unnecessary losses such as thread damage or axle damage are avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic cross-sectional front view of the structure of FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure of FIG. 2;

FIG. 4 is a schematic view of the installation structure of the grounding device;

FIG. 5 is a schematic view illustrating the effect of the driving detachment;

fig. 6 is a schematic view of ultrasonic testing of an axle.

Wherein, the reference numbers: 1-a framework hanging seat; 2-journal box springs; 3-hanging chains; 4-axle box body hanging seat; 5-axle box body; 6-a base; 7-a first insulating sleeve; 8-axle box spring guide sleeve; 9-a second insulating sleeve; 10-a third insulating sleeve; 11-a pallet; 12-an insulating vibration-damping pad; 13-a grounding device; 14-a framework; and 15, opening the hole.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

It should be noted that in the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "one side", "the other side", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the present invention and simplifying the description, and does not mean that the device or the element must have a specific orientation, be constructed in a specific orientation, and be operated.

Referring to fig. 1 to 6, a specific structure of an embodiment of the present invention is provided for a split type locomotive axle box device with bearing insulation and hoisting functions. The device comprises a framework hanging seat 1, an axle box spring 2, a hanging chain 3, an axle box hanging seat 4, an axle box body 5, a base 6, a first insulating sleeve 7, an axle box spring guide sleeve 8, a second insulating sleeve 9, a third insulating sleeve 10, a supporting plate 11, an insulating vibration damping pad 12 and a grounding device 13; the axle box body 5 is arranged below the framework 14; the journal box springs 2 are respectively connected between the left side and the right side of the bottom of the framework 14 and the left side and the right side of the journal box body 5; the frame hanger 1 is respectively arranged at the left and right sides of the bottom of the frame 14 and respectively positioned inside the top ends of the two side axle box springs 2.

The bottom end of the axle box spring 2 is connected with the corresponding position of the axle box body 5 through an insulating damping pad 12, wherein the insulating damping pad 12 comprises an upper layer of steel plate and a lower layer of steel plate and an insulating rubber interlayer arranged between the two layers of steel plates, the lower layer of steel plate is correspondingly and fixedly connected with the axle box body 5, and the upper layer of steel plate is fixedly connected with the bottom end of the axle box spring 2; the shaft box body hanging seat 4 is correspondingly arranged below the insulating vibration damping pad 12 and is positioned in the corresponding position of the shaft box body 5; the supporting plate 11 is arranged at the bottom of the axle box body hanging seat 4 and is fixedly connected with the axle box body 5 through bolts; the third insulating sleeve 10 is arranged between the axle box body hanging seat 4 and the axle box body 5 and the supporting plate 11.

The suspension chain 3 is arranged inside the axle box spring 2, the upper end and the lower end of the suspension chain 3 are respectively connected with the framework suspension seat 1 and the axle box suspension seat 4 correspondingly, other equipment installation is not influenced, the suspension chain 3 does not need to be disassembled in the normal application of the locomotive, and the function of lifting at any time can be realized. The first insulating sleeve 7 and the journal spring guide sleeve 8 are respectively arranged between the hoist chain 3 and the lower region of the journal spring 2; the second insulating sleeve 9 is arranged between the bottom of the lifting chain 3 and the axle box body 5, and the axle box spring guide sleeve 8 is positioned between the first insulating sleeve 7 and the second insulating sleeve 9 and is welded and fixed with the axle box body 5. The first insulating sleeve 7, the journal spring guide sleeve 8, the second insulating sleeve 9 and the third insulating sleeve 10 are all nylon insulating sleeves. First insulating bush 7, axle box spring uide bushing 8, second insulating bush 9, third insulating bush 10 and insulating damping pad 12 will hang and cut off between chain 3, axle box spring 2, axle box hanger 4 and the axle box 5 and realize insulating, and then reach the insulation of the inside bearing of axle box 5, through at spindle nose installation earthing device 13, just can realize the backward flow of electric current on the automobile body, avoid the electric current to pass through the axle box bearing, cause the electroerosion damage.

In this embodiment, the axle box body 5 is a split structure, and four corners of the bottom of the axle box body are connected with detachable bases 6 through four bolts. Parts such as 4 bolts and the motor suspender of the fixed base 6 are disassembled to separate the whole driving part from the framework 14 for replacement, the connection between the axle box body 5 and the framework 14, such as an axle box pull rod, an axle box, a shock absorber and the like, is not required to be disassembled, so that the replacement process can be greatly simplified, and the overhaul and maintenance cost and the working hour are reduced.

In this embodiment, the integrated front end housing on the axle box body 5, the terminal surface is provided with trompil 15 before the axle box body 5, can carry out 5 inside bearing gland's of axle box body dismantlement through this trompil for axletree spindle nose terminal surface exposes, can carry out ultrasonic inspection to the axletree through ultrasonic probe.

The present invention is not exhaustive and is well known.

The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. A split type locomotive axle box device with bearing insulation and hoisting functions comprises a framework, an axle box body arranged below the framework and axle box springs respectively connected between two sides of the bottom of the framework and two sides of the axle box body; the method is characterized in that: the device also comprises a framework hanging seat, an insulating vibration damping pad, a shaft box body hanging seat, a supporting plate, a hanging chain, a first insulating sleeve, a second insulating sleeve and a third insulating sleeve; the frame hanging seats are respectively arranged on two sides of the bottom of the frame and are positioned inside the top ends of the axle box springs; the bottom end of the axle box spring is connected with the corresponding position of the axle box body through an insulating vibration damping pad; the shaft box body hanging seats are correspondingly arranged below the insulating vibration damping pads; the supporting plate is arranged at the bottom of the axle box body hanging seat and is fixedly connected with the axle box body through a bolt; the third insulating sleeve is arranged between the axle box body hanging seat and the axle box body and the supporting plate; the suspension chains are arranged in the axle box springs, and the upper ends and the lower ends of the suspension chains are respectively connected with the framework suspension seat and the axle box suspension seat correspondingly; the first insulating sleeve is arranged between the suspension chain and the lower area of the axle box spring; the second insulating sleeve is arranged between the bottom of the sling chain and the shaft box body.

2. The split type locomotive axle box device with the bearing insulation and hoisting functions as claimed in claim 1, wherein: the axle box body is of a split structure, and the bottom of the axle box body is connected with a detachable base through bolts.

3. The split type locomotive axle box device with the bearing insulation and hoisting functions as claimed in claim 1, wherein: and the middle area of the front end face of the shaft box body is provided with an opening.

4. The split type locomotive axle box device with the bearing insulation and hoisting functions as claimed in claim 1, wherein: the insulating vibration damping pad comprises an upper layer of steel plate and a lower layer of steel plate and an insulating rubber interlayer arranged between the two layers of steel plates.

5. The split type locomotive axle box device with the bearing insulation and hoisting functions as claimed in claim 1, wherein: the first insulating sleeve, the second insulating sleeve and the third insulating sleeve are nylon insulating sleeves.

6. The split type locomotive axle box device with the bearing insulation and hoisting functions as claimed in claim 1, wherein: and a grounding device is arranged at the shaft head position in the shaft box body.